Pattern-guide for mold-making apparatus.



No. 841,167 PATBNTED JAN.1 5, 1907. B. H. MUMFORD. PATTERN GUIDE FOR MOLD MAKING APPARATUS.

APPLICATION FILED 0GI.2, 1908.

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PATENYTED JAN. 15, 1901f B. H'. MUMPORD. v PATTERN GUIDE FORMOLD MAKING APPARATUS.

APPLICATION FILED 001. 2, 1903.

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- amoem-foz lioznm UNITED STATES PATENT OFFICE.

EDGAR HUIDEKOPER MUMFORD, OF MERION, PENNSYLVANIA, ASSIGNOR TO TABOR MANUFACTURING COMPANY, A CORPORATION OF NEW JERSEY.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed October 2,1903. Serial No. 175.431.

.To all whom it may concern:

Be it known that I, EDGAR IIUIDEKOPER MUMFORD, a citizen of the United States, and a resident of Merion, in the county of Montgomery and State of Pennsylvania, have invented a certain new and useful Improvement in Pattern-Guides for Mold-Making Apparatus, of which the following is a specification.

This invention relates to guides for the pattern-carrier of mold-making apparatus, and has for its objects the provision of rightline guides for the carrier and of means for permitting the lateral vibration of the said carrier in order to free the pattern from any clinging sand particles without transmitting the jar of the vibrating mechanism to the molding-flask and sand through the said guides; and it consists of features of construction and combinations of devices hereinafter described, and more particularly pointed out in the appended claims.

The invention is embodied in the constructions illustrated in the, accompanying drawings, forming part hereof, in which Figure 1 is a vertical sectional view, and Fig. 2 is a plan, of one embodiment of the invention. Fig. 3 is a section of a preferred method of securing parts together. Fig. 4 is a plan of a flask, showing the application of the invention. Figs. 5, 6, and 7 are sectional views of modified arrangements. Fig. 8 is a section of the guide shown in Fig. 7. Fig. 9 is a view of a modified form of the spring shown in Fig. 7.

In the drawings the reference a designates a V-shaped fixed guide or bearing which is attached by a plate I) to the side of a flask or half-mold 0, while d marks a flange thereon for convenience in handling, and e a V- shaped sliding guide which fits into the guide or bearing a, and f marks a patterncarrier or a part which is rigidly connected in operation with such carrier.

The reference 00 marks a flange on the pattern-carrier for convenience in handling. It is remarked that the carrier may be of any known type or form.

The reference 9 marks a fiat spring which is fast at its ends to the sliding guide 6 and at its middle portion to the carrier f, the sliding guides being perforated at 72. to allow the screws 41 to be inserted into place to connect the springs and the carrier. Rivets j and washers k may be used to connect the springs and the sliding guides, or the guides may be formed with shouldered studs Z, which are subsequently upset to form the heads whereby the springs g are held in place with relation to the sliding guides.

The carrier f may be provided with an extension s, to which a vibrator-engine 'of the type illustrated in Tabors patent, N 0. 533,401, dated January 29, 1895, or in Tabor and Mumfords patent, No. 654,292, dated July 24, 1900, may be connected in any suitable manner. Such vibrator-engine may be operated by steam or compressed air, and when in operation it moves the pattern-carrier laterally, While the springs 9 keep the sliding guides constantly in firm contact with the fixed bearings or guides a.

In the modification shown at Fig. 5 the pattern-carrier f is connected with the sliding guide 6 by shouldered screws m, and a spring n in a socket in the guide e presses the carrier away from the sliding guide and against the screw-heads.

In Fig. 6 the carrier f is connected with the sliding guide by headed ins 0, which are held in place by threaded pins 1), and the springs n, placed in sockets in the guide, act as in the preceding case shown in Fig. 5.

In Fig. 7 a spring q is set in a slot in the guide e and at its ends bears against the carrierf, the latter being, by preference, slotted to receive the ends of the spring. The spring 9 may have a coil 9" at its central part, as illustrated in Fig. 9.

The essential feature of the present invention is the cushioning of the vibration, as above, and the lateral motion of the patterncarrier independently of its sliding guides, and it is remarked that such motion may be provided for in ways other than those shown in the drawings and above described. It is also remarked that other forms of guides may be substituted for those shown and described and that the ends of the fiat springs 9 may be connected with the pattern-carrier and the middle portions thereof be connected with the sliding guides and that other forms of spring may be used, all Without departing from this invention.

What is claimed is 1. A pattern-carrier, sliding guides there for, and fiat springs fast at their ends and central parts to said carrier and guides and connecting them.

2. A pattern-carrier rovided With elongated guides movable re latively thereto and held in normal position by springs, combined vvith a vibrator-engine for agitating said carrier.

3. A pattern carrier having elon ated sliding guides arranged at right angles t ereto and connected at their ends therewith by metal springs, combined with a vibrator-engine for agitating said carrier.

4:. The combination of a pattern-carrier, sliding guides therefor, fiat metal springs I5 fast at their ends and central parts to and connecting said carrier and said guides to gether, and a vibrator-engine connected to said carrier.

Signed at Philadelphia, in the county of Philadelphia and State of Pennsylvania, this 11th day of September, A. D. 1903.

' EDGAR HUIDEKOPER MUMFOR-D.

Witnesses:

O. S. LovELL, H. N. WILLIAMS. 

